Function description
6ZLWFKLQJRQLQKLELWHG
4XLFNVWRS
5DPSVWRS
-RJJLQJGRZQUDPS
5HDG\IRUVZLWFKLQJRQ
5HDG\
2SHUDWLRQ
(QDEOH
RSHUDWLRQ
,QKLELW
RSHUDWLRQ
0RWRU
VWDWLRQDU\
0RWRU
VWDWLRQDU\
0RWRU
VWDWLRQDU\
6ZLWFKRQWKHSRZHUVXSSO\RIWKHLQYHUWHU
DQGQRW
DQGQRW
21
-RJJLQJ
-RJJLQJ
RU
RU
2))
2))
2))
2))
2))
2))
2))
2))
2))
2))
2))
2))
2))
21
-RJJLQJ
-RJJLQJ
RU
1HLWKHUMRJJLQJ
QRUMRJJLQJ
2))
2))
2))
6
6
6
6
6D
6F
6E
Figure 6-3
Sequence control of the converter when the motor is switched on and off
Converter states S1 … S5c are defined in the PROFIdrive profile. The sequence control defines
the transition from one state to another.
Table 6-1
Converter states
The motor is switched off
The motor is switched on
Current does not flow in the motor and the motor
does not generate any torque
Current flows in the motor and the motor generates
a torque
S1
The ON command and an OFF command
are active at the same time.
In order for the converter to exit the state,
you must deactivate OFF2 and OFF3 and
activate the ON command again.
S4
The motor is switched on.
S2
The converter waits for a new command
to switch on the motor.
S5a,
S5c
The motor is still switched on. The con‐
verter brakes the motor with the ramp-
down time of the ramp-function generator.
S3
The converter waits for "Enable opera‐
tion". The "Enable operation" command is
always active in the converter factory set‐
ting.
S5b
The motor is still switched on. The con‐
verter brakes the motor with the OFF3
ramp-down time.
Advanced commissioning
6.3 Drive control
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC
183
